Hi,

1) In WMS is is only compulsory to advertize WGS84 bounding box -> as long as 
OpenJUMP is missing CRS support zoom to bounds will not work generally. 
However, additional BBOX:es do exist often and zoom to layer is possible to 
perform.
2) As Michaƫl wrote, automatic zoom to bounds should not be done if project 
already has layers -  vector, raster or other WMS layers
3) Bounding boxes which are advertised by the WMS server may be wrong.
4) Zoom to extents of the WMS layer does not necessarily show any map because 
the layer may have more strict scale range.

I would say that [2] should be taken into account when implementing and the 
most robust zoom to layer should be based on re-projected WGS84 BBOX  [1].

[3] and [4] are mainly something that users should be aware, though WMS 
GetCapabilities may contain some info about the valid scale range. As a helper 
feature for recognizing the wrong BBOXes there could be a function that 
converts the  BBOXes from the server GetCapabilities into vector polygons.


-Jukka Rahkonen-


________________________________________
edgar.soldin wrote:

> is there a specific reason that we do not zoom to a new opened wms layer?

..ede

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